Asian-style high-flow quick-connect air couplings push-to-connect and disconnect quickly for frequent access to pneumatic lines. High-flow couplings increase flow for greater tool efficiency, reduce pressure drop, and decrease air costs. Also called Japanese interchanges, these couplings have a shut-off valve and are compatible with any Japanese-style coupling regardless of pipe size or barbed hose ID. These multipurpose couplings connect air tools and hoses to compressed air supplies for fluid transfer, assembly work, and engine repair.